Lock



G. D. HILL 2,090,202

- LOOK Filed Nov. 14, 1955 2 Sheets-Sheet 1IIIIIIIIIIIHWIIIIIIIMIIIIIII||| h llll HI "I IIHIIIIII INVENTOR%zIsATT0RNEY G. D. HILL. 2,090,202

LOCK

Filed Nov. 14, 1955 2 Sheets-Sheet 2 Aug. 17, 1937.

III

%ZSATTORNEY Patented Aug. 17, 1937 Sargent & Greenleaf,

Ina, Rochester, N. Y., a

corporation of New York Application November 14, 1935, Serial No. 49,779

17 Claims.

The present invention relates to improvements in looks, one object beingto provide a lock which is simple in construction and which embodiesrelatively few closely related parts whereby to provide a compactunitary lock of the class described.

A further object of the invention is to provide improvements in locks ofthis class in which the bolts are of the flanged arcuate type, theconstruction embodying improved means for operating and holding the boltin different positions and the design being such as to preventunauthorized release of the bolt by attempts at springing or jimmyingthe parts secured by the lock.

A further object of the invention is to provide an improved lock whichcan be manufactured at relatively low cost and one having parts whichcan be readily assembled to afford a unitary structure capable of beingapplied to desks, cabinet drawers, doors, and other closures to secureand safely lock the same.

To these and other ends. the invention resides in certain improvementsand combinations of parts, all as will be hereinafter more fullydescribed, the novel features being pointed out in the claims at the endof the specification.

In the drawings:

Fig. 1 is a front elevation of the lock with the bolt shown in extendedposition;

Fig. 2 is a plan view of the same;

Fig. 3 is a view similar to Fig. 1 with the bolt in retracted position;

Fig. 4 is a plan view of the lock shown in Fig. 3;

Fig. 5 is a plan view illustrating the keeper for the bolt;

Fig. 6 is a sectional elevation substantially on the line 6-6 of Fig. 9in which the bolt is shown in looking position;

Fig. 7 is a somewhat similar View in which the bolt holding detent isshown at release position;

Fig. 8 is a detailed perspective view of the rotary supporting elementfor the bolt;

Fig. 9 is a transverse section on line 99 of Fig. 6;

Fig. 10 is a sectional elevation substantially on line ill-40 of Fig.4;-

Fig. 11 is asectional plan on line llll of Fig. 1;

Fig. 12 is a transverse section taken through the bolt on its axis ofrotation;

Fig. 13 is a sectional elevation similar to Fig. 6 a showing a slightlymodified bolt, and

' Fig. 14 is a side elevation of the bolt drawn to a reduced scale.

The same reference numerals throughout the several views indicate thesame parts.

The present lock is one adapted for use as securing means for chests,sliding drawers, and swinging or sliding doors, and other closures. Itis particularly adapted for tightly securing the closure or other partsto be locked whereby to prevent jimmying or springing of the same, andis of such a design as to avoid the projection of any parts from thelock or keeper when the bolt is in unlocked position.

The part it to which the lock is applied may constitute the front of adrawer such as a cabinet or desk drawer, or a closure or the like. Theframe or wall H for supporting the keeper I2 is recessed at it toreceive the keeper which is secured by the screws It as shown in Fig. 6.The closure 56 is recessed at i5 to receive the lock designatedgenerally by the reference numeral Hi, the lock being secured within therecess by means of the screws H, as shown in Fig. 6.

The lock mechanism is enclosed in a unitary casing comprising the frontand rear sections I8 and i9, respectively, the latter having a forwardlyprojecting flange I900. The front section has a cylindrical extension 20thereon which may be integrally form-ed therewith or detachablyconnected thereto as by means of the screws 2|, Fi 9.

A suitable lock for securing the bolt is disposed in the cylindricalportion 20 of the casing, such, for example, as the cylinder lock shown,having the usual tumbler arrangement as illustrated in Fig. 9. Thecylinder 22 of the lock, which receives and is rotated by the key 23,has a reduced extension 24 projecting within and operatively associatedwith the rotary supporting member 25 carrying the bolt, designatedgenerally by the reference numeral 26.

The rotary supporting member 25 has its front and rear ends journaled inopenings formed in the front and rear sections it and I9 of the casing,respectively, as best shown in Fig. 9.

The bolt is preferably formed by suitably securing together, as by spotwelding, two substantially circular sections 27 having oppositelyextending curved or arcuate flanges 28 for movement through the slots 29and 29a, of the lock casing and keeper l2, respectively, into lockingengagement with the curved lugs 3b of the keeper, as shown in Figs. 6,9, and 13.

The rotary supporting member 25 is extended through circular openings250, formed in the front and rear sections of the bolt and isoperatively connected with the sections preferably by the lugs 3| ofsaid sections which engage the rotary supporting member within the slot32 thereof. The lugs are extended slightly within the bore of the rotarysupporting member so that their 5 opposite edges will. be engaged by theextension 24 of the lock cylinder projecting within the bore or recessof the supporting member. It will be understood that in turning the keyin the lock in a direction to unlock the bolt, that the extension 24 ofthe cylinder will engage the edges of the lugs 3| at one side thereof torotate the bolt to release position and that in turning the key in anopposite direction, said extension will engage the opposite edges of thelugs to rotate the bolt to locking position, as shown in Figs. 6 and 13.

The retaining means for holding the bolt in looking and unlockingpositions comprises a detent 33 pivoted at 34 on the rear section I9 ofthe lock casing, the detent having a laterally projecting lug 35extending within the opening 36 of the bolt and adapted to hold the boltin locking and unlocking positions by engaging it within the notches 33and 39 thereof, respectively. A spring 453 is suitably connected withthe detent and normally maintains it in bolt securing position, as shownin Figs. 6 and 13, the free end of the springbeing held by a pin l!extending forwardly from the rear wall of the lock casing.

The boltsupporting member 25 is provided with -similarly formed slots 42in its opposite sides for receiving the inner edge of the detent, whichprojects slightly within the bore of the supporting member when the boltis in locking and unlocking positions, in which positions the lug of thedetent will engage the bolt within the notches 38 and 39, respectively,to positively lock the bolt in said positions.

.In turning the key of the lock to rotate the cylinder in acounterclockwise direction as viewed in Fig. 6, the extension 24 of thecylinder will engage and cam the detent outwardly to the position shownin Fig. 7 in which the lug 35 is moved out of the notch 38 of the bolt.Upon continued rotation of the cylinder in a counterclockwise directionto 45 the position shown in Fig. 7, the bolt will be moved to unlockingposition during which time the lug 35 of the detent will ride on thesemi-circular portion 43 of the bolt until the bolt is moved tounlocking position, as shown in Fig. 10, at which time the lug will bemade to enter the notch 39 through movement of the detent by the spring40. In the locking operation the cylinder extension 24 will be rotatedin a clockwise direction as viewed in Fig. 10, first releasing thedetent and 5 then engaging the lugs 3| of the bolt to rotate the latterto locking position, at which time the lug 35 of the detent will returnto the notch 38 of the bolt as shown in Figs. 6 and 13.

In the embodiment shown in Fig. 13 the construction and arrangement ofparts is the same as that shown in the remaining figures except that theflanges 28 of the bolt have cam portions 280. formed centrally thereonand extending inwardly thereof whereby when the bolt is being moved tolocking position the cams will ride on the lugs 30 of the keeper toinsure a binding action between the bolt and the keeper so that thelatter may be slightly deflected at its center or drawn inwardly towardthe lock to prevent any substantial play between the drawer or closureand the frame to which the keeper is applied, thus providing for a morerigid and secure connection between the door or closure'and theframework to which the keeper is applied. Furthemore, it will be obviousthat the bolt shown in Fi 6 can be so proportioned as to tightly clampthe lock casing and keeper together when the bolt is in lockingposition.

Furthermore, the bolt is so constructed that when in unlocking positionit will serve to substantially close the opening 29 in the flange l9c ofthe rear section [9 of the casing. In other words, the portion 21a. ofthe bolt will serve to close the narow portion of the slot 29 and theends of the bolt flanges 28 will substantially close the end or widerportions of the slot as indicated in Fig. 4. By thus closing the slot 29when the bolt is in unlocked position small articles of different kindswill be prevented from entering the lock casing and interfering with themovements of the operating parts.

The front section of the lock casing not. only affords a seat for thefront face of the bolt but is formed to provide curved channel-shapedguides 18a for the arcuate flanges 28 of the bolt, as shown in Fig. 11.

By providing a single unitary casing for the bolt and the cylinder lock,an extremely compact locking unit is aiforded, no part of which projectsbeyond the limits of the closure to which the lock is applied when. thebolt is at unlocking position. In other words, the complete lock ishoused within the recess l5 formed within the closure as indi-l Anotheradvantageous feature cated in Fig. 9. is that of employing a shortextension on the lock cylinder to both rotate the bolt to and fromlooking position and to release the bolt holding detent rotatable withinthe casing and having a lug extending therein and a key operated lock inthe casing having a rotary operating part for engaging opposite portionsof the lug to rotate the bolt in opposite directions.

2. In locking means, a casing having an opening in one Wall thereof, abolt rotatable within the casing provided with a recessed supportingmember and having a substantially arcuate portion movable through saidopening to engage a keeper upon moving the bolt to locking position,

the bolt having associated therewith a part for closing said openingwhen the bolt is returned to unlocking position within the casing,retaining means for holding the bolt in locked position extending withinthe recessed supporting member, and a lock having a rotary operatingmember for withdrawing the bolt movable relative to and within therecessed supporting member and adapted to engage and move the retainingmeans to release position when the operating member is being rotatedtoward bolt withdrawing position.

3. In locking means, a casing having an opening in one wall thereof, abolt within the casing having a recessed supporting part rotatablyreceived within the casing, said bolt having oppositely extendingflanges for locking engagement with a keeper, said flanges beingdisposed within the casing when the bolt is in unlocked position andmoving through said opening when rotating the bolt to locking position,the bolt having a part extending between the ends of said flanges andcooperating with said ends to close said opening when the bolt is inunlocked position, and a spring pressed detent for holding the bolt inlocked position, a rotary operating part for the bolt extending withinthe casing and within said recessed supporting part and movable relativeto said part and operable to effect release of the detent and rotationof the bolt from locking position.

4. In locking means, a casing having an opening in one wall thereof, abolt rotatable within the casing and having a substantially arcuateportion for movement through said opening to locking position, a lockassociated with the casing and having an operating member rotatable'inopposite directions substantially on the axis of the bolt, saidoperating member including a part for engaging and moving the bolt toand from looking position, and retaining means for holding the bolt inlocked and unlocked positions, the operating member being movablerelative to the retaining means and said retaining means being engagedby said part and moved thereby to release position in advance of themovement of the bolt by the operating member.

5. In locking means, a casing having an opening in one wall thereof, abolt within the casing having a recessed supporting portion rotatablyreceived within the casing and provided with an abutment, said bolt alsohaving a substantially arcuate portion disposed within the casing whenthe bolt is in unlocked position and being movable through said openingto locking position, and a lock associated with the casing and having arotary operating part ext-ending within the casing and Within saidrecessed supporting portion for engagement with said abutment to effectoperation of the bolt upon rotation of said operating part.

6. In locking means, a casing having an opening in one wall thereof, abolt within the casing having a recessed supporting portion rotatablyreceived by the casing and provided with an abutment, said bolt alsohaving a substantially arcuate portion disposed within the casing whenthe bolt is in unlocked position and being movable through said openingto locking position, a lock associated with the casing and having arotary operating part extending within said recessed supporting portionfor engagement with said abutment to efifect operation of the bolt uponrotation of said operating part to a predetermined position, andretaining means for holding the bolt in looking position, said retainingmeans 1 being released by said operating part in advance of its movementto said predetermined position.

7. In locking means, a casing having an opening in one wall thereof, abolt within the casing having a recessedsupporting portion rotatablyreceived by the casing and provided with an abutment, said supportingportion having oppositely disposed notches therein, said bolt alsohaving a substantially arcuate securing portion disposed within thecasing, and movable through said opening from unlocking to lockingposition, a

lock associated with the casing and having a rotary operating partextending within said recessed supporting portion for engagement withsaid abutment to effect operation of the bolt upon rotation of saidoperating part, and a spring pressed retaining member having a portionfor engaging the bolt within said notches to hold the bolt in lookingand unlocking positions, said retaining member being actuated by saidoperating part when rotating the latter in opposite directions wherebyto release the bolt for operation by said part.

8. In locking means, a casing, a bolt having a recessed supportingportion rotatably disposed within the casing and having an abutmentwithin the recess, a lock associated with the casing having a rotaryoperating member extending within said recess and adapted when rotatedin opposite directions to engage said abutment to rotate the bolt to andfrom looking position, and a retaining member for holding the bolt inlooking and unlocking positions, said retaining member extending withinsaid recess when in normal operating positionand being moved to releaseposition by said operating member inv advance of the operation of thebolt by the latter.

9. In locking means, a casing, a bolt therein rotatable to and fromlooking position, a look within the casing including a rotary operatingmember for the bolt, said bolt having oppositely disposed notchestherein and having a circular slot with which the notches communicate,retaining means for engaging the bolt within said notches to hold it inlocking and unlocking position, said retaining means extending Withinthe slot during movement of the bolt to and from looking position, saidoperating member having a part adapted upon rotation of said member inopposite directions to predetermined positions to engage and move theretaining means to release position, said part upon continued rotationof said member in either direction from said predetermined positionsserving to operate the bolt.

10. In locking means, a casing having a bolt rotatable to and fromlooking position, a look within the casing including a rotary operatingmember for the bolt rotatable substantially on the axis of the bolt,retaining means for engaging and holding the bolt in looking andunlocking position, said operating member having a part adapted uponrotation of said member in either direction to first engage and releasesaid retaining means and adapted upon continued rotation of said memberin the same direction to rotate the bolt to one of said positions.

11. In locking means, a casing having an opening in one wall thereof, abolt rotatable within the casing and having a substantially arcuateportion movable through said opening to engage a keeper for the boltwhen moving the bolt to locking position, said arcuate portion having acam thereon for engaging the keeper to afiord a binding action betweenthe bolt and the keeper when moving the bolt to locking position, meansrotatable substantially on the axis of the bolt for rotating the bolt toand from looking position and retaining means for holding the bolt inlocked and unlocked positions, the bolt rotating means operating whenrotated in either direction to release the retaining means in advance ofrotation of the bolt. I

12. In locking means, a casing having an opening in one wall thereof, abolt rotatable within the casing and having a substantially arcuateportion movable through said opening to engage a keeper for the boltwhen moving the bolt to locking position, said arcuate portion having acam thereon for engaging the keeper to afford a binding action betweenthe bolt and the keeper when moving the bolt to locking position,retaining means for holding the bolt in looking position, and a cylinderlock substantially coaxial with the bolt and having a part for engagingthe bolt to rotate it in opposite directions, said part "also engagingthe retaining means when being rotated whereby to release the retainingmeans in advance of the unlocking operation.

13. In locking means, a lock casing, a bolt rotatably disposed withinthe casing and having an axially disposed bore, a lock within the casinghaving an operating part rotatable in opposite directions within saidbore to move the bolt to and from locking position, and retaining meansfor holding the bolt in looking position, said retaining means beingoperated by said part to release position in advance of the movement ofthe bolt to unlocking position.

14. In locking means, a lock casing, a bolt rotatably disposed withinthe casing and having a hub-like portion provided with a bore, saidhublike portion having oppositely disposed slots communicating with saidbore, the operating member for the bolt having a part rotatable inopposite directions within said bore to move the lock to and fromlooking position, and a retaining member for the bolt adapted to extendwithin said slots when the bolt is in locking and unlocking positions,said retaining member being moved to release position by said operatingmember when rotating the latter in opposite directions to move the boltto and from looking position.

15. In lock mechanism, a casing having an I opening in one wall thereof,a bolt within the: casing having a substantially arcuate portion movablethrough said opening to engage a keeper upon moving the bolt to lockingposition, a recessed supporting member for the bolt rotatably supportedWithin the casing, an actuating part for the bolt extending within therecess of the supporting member, and a rotary operating member for thebolt projecting within the casing, and

in said recessed supporting member and rotat-- able to engage oppositeportions of said actuating part to effect rotation of the bolt inopposite directions.

16. In lock mechanism, a casing, a bolt rotat- I able within the casingand provided with a cir-.

cular slot having spaced communicating notches,

a lock including a rotary operating member for the bolt, retaining meansforjthe bolt including a part for engaging the bolt within said notchesto hold it in locking and unlocking positions, said part extendingwithin said slot during movement of the bolt to and from lookingposition, said operating member having a part adapted upon rov tation ofsaidmember in opposite directions to predetermined positions to engageand move the I cluding a part for engaging the bolt within said notcheswhen the bolt is at locking and unlock-' ing positions whereby to holdit in said positions,

said part extending within the slot during movement of the bolt to andfrom locking position.

GERRIT 1)., HILL.

